Part A: How many mL of a 100 mg/dL Ferrozine solution
are needed to complex
5.5×10−8
moles of iron?
Part B: How many moles of Fe3+
can be reduced by 1.3
mL of
0.291
M hydroxylamine
solution?
Part C: As part of this laboratory, you may have to add
iron to a solution. If you have 16
mL of a solution that
contains 37
μg dL-1, how many mL of 500
μg dL-1 iron must be added to reach a
concentration of 150 μg
dL-1?...
How many grams of Co(NO3)2 ·6H2O are needed to prepare 100.00 mL of 0.15 M solution of Co(NO3)2 ?
If 2.00 mL of the 0.15 M Co(NO3)2 solution is diluted to 10.00 mL with water, what is the resulting Co(NO3)2 concentration?
How many mL of 12 M HCl will be needed to prepare 500 ml of 1.2
ppm HCl solution? What is the pH of this 1.2 ppm HCl solution?
Using the right significant figures. MW of HCl=36.5g/mol
I already found the first answer which is 1.4 x 10^-3
mL
How do I find the pH? I know the formula is -log [H+], but I
have no information for it?
(a) How many grams of CaCl2 are needed to make 798.0 g of a
solution that is 32.5% (m/m) calcium chloride in water? Note that
mass is not technically the same thing as weight, but (m/m) has the
same meaning as (w/w).
-How many grams of water are needed to make this solution?
(b) What is the volume percent % (v/v) of an alcohol solution
made by dissolving 147 mL of isopropyl alcohol in 731 mL of water?
(Assume that...
how
manu mL of 5.00 M NaOH solution are needed to prepare 750mL of a
0.150 M NaOH solution? and how many mL of water misy be added to
prepare the above solution?
When 100 mL of an aqueous solution containing 1.0 g of caffeine
is extracted with 10 mL of chloroform at room temperature, 0.5 g of
caffeine is transferred to the chloroform layer. Calculate the
distribution coefficient of caffeine between chloroform and water
at room temperature.